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Answers
Question 1
| (a) | \( 20, 23, 26\) | (b) | \( 71, 79, 87\) | (c) | \( 26, 21, 16\) | (d) | \( 53, 59, 65\) |
| (e) | \( -27, -31, -35\) | (f) | \( 87, 100, 113\) | (g) | \( 41, 46, 51\) | (h) | \( -26, -33, -40\) |
| (i) | \( 82, 95, 108\) |
Question 2
| (a) | \( 4\) | (b) | \( 58\) | (c) | \( 11\) | (d) | \( 55\) |
| (e) | \( 63\) | (f) | \( 133\) | (g) | \( 1\) | (h) | \( 36\) |
| (i) | \( 55\) |
Question 3
| (a) | \( 8, 14, 20, 26\) | (b) | \( 1, 3, 5, 7\) | (c) | \( 25, 28, 31, 34\) | (d) | \( 1, 6, 11, 16\) |
| (e) | \( 16, 23, 30, 37\) | (f) | \( -9, -12, -15, -18\) | (g) | \( 7, 11, 15, 19\) | (h) | \( 15, 6, -3, -12\) |
| (i) | \( 6, 18, 30, 42\) | (j) | \( 3, 11, 19, 27\) | (k) | \( 27, 12, -3, -18\) | (l) | \( 18, 31, 44, 57\) |
Question 4
| (a) | \( 9\) | (b) | \( 6\) | (c) | \( 12\) | (d) | \( 5\) |
| (e) | \( 8\) | (f) | \( 7\) | (g) | \( 10\) | (h) | \( 5\) |
| (i) | \( 11\) | (j) | \( 8\) | (k) | \( 7\) | (l) | \( 6\) |
Question 5
| (a) | \( 2n + 3\) | (b) | \( 8n - 7\) | (c) | \( -3n - 8\) | (d) | \( 4n - 3\) |
| (e) | \( 5n + 7\) | (f) | \( -9n + 45\) | (g) | \( 6n - 11\) | (h) | \( 3n - 7\) |
| (i) | \( 7n + 3\) | (j) | \( -6n + 19\) | (k) | \( 4n - 6\) | (l) | \( 18n - 37\) |
Question 6
| (a) | \( 151, 196, 247\) | (b) | \( 66, 83, 102\) | (c) | \( 123, 158, 197\) | (d) | \( 75, 8, 101, 131\) |
| (e) | \( 121, 156, 195\) | (f) | \( 147, 183, 223\) | (g) | \( 101, 131, 165\) | (h) | \( 94, 116, 140\) |
| (i) | \( 128, 169, 216\) |
Question 7
| (a) | \( 44\) | (b) | \( 53\) | (c) | \( 18\) | (d) | \( -5\) |
| (e) | \( 20\) | (f) | \( 43\) | (g) | \( -7\) | (h) | \( 41\) |
| (i) | \( 48\) |
Question 8
| (a) | \( 9, 12, 17, 24\) | (b) | \( -3, 3, 13, 27\) | (c) | \( 2, 12, 21, 32\) | (d) | \( 3, 16, 39, 72\) |
| (e) | \( -2, 4, 12, 22\) | (f) | \( 5, 20, 37, 56\) | (g) | \( 17, 26, 39, 56\) | (h) | \( -2, -3, 0, 7\) |
| (i) | \( 7, 22, 45, 76\) | (j) | \( -2, -4, -4, -2\) | (k) | \( -2, 11, 30, 55\) | (l) | \( 15, 24, 45, 78\) |
Question 9
| (a) | \( n^2\) | (b) | \( n^2 + 3\) | (c) | \( 2n^2\) | (d) | \( n^2 - 2\) |
| (e) | \( 3n^2\) | (f) | \( 2n^2 + 3\) | (g) | \( 4n^2 + 2n\) | (h) | \( 2n^2 - 6n + 7\) |
| (i) | \( n^2 + 8n - 4\) | (j) | \( 5n^2 + 4n - 3\) | (k) | \( 4n^2 - 2n\) | (l) | \( 6n^2 + 5n + 12\) |